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Date:   Fri, 20 May 2022 21:27:26 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Chen-Yu Tsai <wenst@...omium.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Michael Turquette <mturquette@...libre.com>
Cc:     Chen-Yu Tsai <wenst@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chun-Jie Chen <chun-jie.chen@...iatek.com>,
        Miles Chen <miles.chen@...iatek.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] clk: mediatek: mt8183: Add clk mux notifier for MFG mux

Quoting Chen-Yu Tsai (2022-05-20 02:43:23)
> diff --git a/drivers/clk/mediatek/clk-mt8183.c b/drivers/clk/mediatek/clk-mt8183.c
> index 8a755fadebb5..afef3738396e 100644
> --- a/drivers/clk/mediatek/clk-mt8183.c
> +++ b/drivers/clk/mediatek/clk-mt8183.c
> @@ -1217,6 +1219,25 @@ static int clk_mt8183_top_probe(struct platform_device *pdev)
>         mtk_clk_register_gates(node, top_clks, ARRAY_SIZE(top_clks),
>                 top_clk_data);
>  
> +       /* Register mux notifier for MFG mux */

This comment sort of indicates it should be another function for this
block called "register mfg mux notifier".

> +       mfg_mux_nb = devm_kzalloc(&pdev->dev, sizeof(*mfg_mux_nb), GFP_KERNEL);
> +       if (!mfg_mux_nb)
> +               return -ENOMEM;
> +
> +       for (i = 0; i < ARRAY_SIZE(top_muxes); i++)
> +               if (top_muxes[i].id == CLK_TOP_MUX_MFG)
> +                       break;
> +       if (i == ARRAY_SIZE(top_muxes))
> +               return -EINVAL;
> +
> +       mfg_mux_nb->mux = &top_muxes[i];
> +       mfg_mux_nb->bypass_index = 0; // Bypass to 26M crystal

Use /* these types of comments */

> +       ret = devm_mtk_clk_mux_notifier_register(&pdev->dev,
> +                                                top_clk_data->hws[CLK_TOP_MUX_MFG]->clk,
> +                                                mfg_mux_nb);
> +       if (ret)
> +               return ret;
> +
>         return of_clk_add_hw_provider(node, of_clk_hw_onecell_get,

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